Jad Technologies

We take over the backend nobody else will touch.

Your developer left. The agency stopped answering. Or it got built fast with an AI assistant and now nobody can safely change it. That is the whole job we do — and unlike everyone else doing it, we publish what it costs.

what changes in three weeks
Someone understands the systemno→yes
Architecture written downnone→complete
Core flows under test0%→78%
Known vulnerabilities14→0
Confidence to deploy on a Fridaynone→earned

Two ways in

Both start with the same repository. One makes it maintainable, the other makes it defensible.

Backend rescue

You inherited a Node.js or NestJS system and nobody understands it. We map it, stabilise it, document it, and hand it back deployable in 21 days.

  • Architecture map and a risk register ranked by severity
  • Characterisation tests across your core flows
  • CI, a tested rollback, and a real runbook
  • Clean handover of repository and infrastructure access

Diagnostic from $1,800. Full rescue $6,500.

See the offer

Application security

An enterprise deal is stuck behind a security questionnaire, or you simply do not know what is in the code you inherited. We read the repository, not just the login page.

  • Secure code review for Node and TypeScript
  • Dependency and supply-chain audit
  • Security questionnaire and vendor review support
  • SOC 2 readiness gap assessment

Questionnaire unblock from $1,500. Code review $4,900.

See the offer

Work you can go and look at

Two of these are live products you can open right now. The third is the platform I architect in my day job.

Integrated medical platform

Senior Node developer, 2023 to present

Architected a platform consolidating CRM, records, scheduling and multi-branch operations for a clinical group.

  • 600+ internal users, 1,000 prospects a day
  • Kafka pipelines carrying 5,000+ events daily
  • Led the move from monolith to microservices
  • Established the CI/CD pipeline and OpenAPI documentation
  • Mentors three developers on the team

Jade

Sole architect and developer — tujade.com

A multi-tenant ERP for small and mid-size businesses, with double-entry accounting as the system of record.

  • 20 tenants in production on a single 4 vCPU VPS
  • ~140,000 lines of TypeScript, 141 data models, 50+ backend modules
  • Schema-per-tenant isolation with subdomain routing
  • ~100 Jest and Playwright suites behind an automated QA gate
  • Architecture decision records, scripted deployments

canchaYa

Sole architect and developer — micanchaya.com

Tournament management and ticketing, with a paying client running live competitions on it.

  • Multi-tenant platform with a public fan portal
  • QR ticketing, revenue dashboards, thermal printing
  • Offline-first Android point of sale in Kotlin and Compose
  • Idempotent server-side deduplication of offline sales
  • TOTP two-factor, CSRF protection, full ES and EN

Who you are actually hiring

You have already been burned by someone who disappeared. So here is exactly who shows up, in detail.

Twelve years, most of it remote and cross-border

Software engineering since 2011, delivered for teams in Ecuador, Argentina, El Salvador, the United Kingdom and Mexico. Working across a border with people I have never met in person is the normal condition of my work, not an experiment I would be running on your project.

The last four years have been Node.js, NestJS, React and event-driven architecture on Kafka. In my current role I architected a medical platform serving 600 internal users and a thousand daily prospects, built the Kafka pipelines carrying five thousand events a day, led the migration from monolith to microservices, established the CI/CD pipeline, and mentor three developers.

Security as a job, not a hobby

A master's in digital forensics and cybersecurity from CUNY John Jay in New York, and a period working as an IT security specialist for a UK company — automating server and workstation monitoring, triaging incidents across global teams.

The combination is the point. A security specialist can tell you a finding is exploitable. A working backend engineer can hand you the patch. Doing both in one pass is what makes a three-week engagement possible at all.

Daniel Mera

Ambato, Ecuador. UTC−5, which is New York's working day. English C1, Spanish native.

  • 12+ years across software engineering, IT security and technical education
  • MS, Digital Forensics and Cybersecurity — CUNY John Jay, New York
  • BA, Computer Science — Universidad Tecnológica Indoamérica
  • Delivered remotely for teams in the United States, United Kingdom, Mexico, Argentina and El Salvador
Languages
TypeScript, JavaScript, Python, Kotlin, SQL, Bash
Backend
Node.js, NestJS, Express, REST, Prisma, Sequelize
Architecture
Microservices, event-driven systems, Apache Kafka, multi-tenant SaaS with schema-per-tenant isolation
Frontend
React, Redux Toolkit, TanStack Query, RxJS, Tailwind, Material UI
Data
PostgreSQL, MySQL, MariaDB, MongoDB, SQL Server
Platform
Docker, Nginx, CI/CD, Linux VPS operations, n8n automation
Testing
Jest, Playwright, Swagger and OpenAPI, automated QA gates
Mobile
Kotlin, Jetpack Compose, Kotlin Multiplatform
Security
Secure code review, digital forensics, vulnerability assessment

Ambato shares a working day with New York, Toronto and Miami. Your standup happens at standup time, not overnight.

Why the fees are on the site

Look at the other firms doing this work. Not one of them publishes a number. You get a contact form and a discovery call, and the smallest of them still starts at eighty thousand dollars a year.

That works for a company with a procurement department and a quarter to spare. It does not work for a six-person team whose backend broke on a Tuesday and who need to know today whether this is a two-thousand-dollar problem or a fifty-thousand-dollar one.

So the fees are fixed, written down, and you can decide before you ever speak to us. We are deliberately small: you work with the person doing the work, not an account manager, and not a junior assigned after the sale.

Tell us what broke

Twenty minutes, no pitch. Bring the repository or just describe the situation. You will leave knowing what it would take, whether or not you hire us.